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AssigneeVyzkumny a vyvojovy ustav Zavodu vseobecneho strojirenstvi
InventorsVladimir Kuda, Vladimir Vasicek, Borivoj Suchanek
Estimating the term…
A method and arrangement for picking a weft thread by means of a weft thread inserting comb in a jet loom. The comb is composed of a plurality of juxtaposed comb members which are mounted on a reciprocating slay of the jet loom. Each comb member has a pair of shank portions which define a weft inserting opening and an unthreading channel. The comb members, when in their operative positions, define a weft inserting channel. At least one of the comb members has secondary carrying fluid conduit means which directs via an outlet a stream of a secondary carrying fluid into a zone of said weft inserting channel which is disposed below the axis of the channel relative to the unthreading channels of the comb.
In a jet loom having a nozzle adapted to direct a stream of a fluid pressure medium through a horizontally disposed weft inserting comb which is cyclically moved by a slay into the shed formed by the warp threads thereby picking a weft thread therethrough, the improvement comprising,
In an apparatus for picking a weft thread through a weft inserting comb in a jet loom by means of a stream of a fluid pressure medium, flowing forwardly from a nozzle through a horizontally disposed comb, wherein said comb is cyclically moved into the shed formed by the warp threads, the improvement wherein said comb includes a plurality of juxtaposed apertured comb members defining a horizontal picking path for the weft thread, each comb member having a pair of shank portions which define an unthreading channel therebetween, at least one comb member having secondary carrying fluid outlet means in each shank portion, said outlet means having axes mutually intersecting at a point below the picking path of the weft thread for respectively directing downwardly and forwardly beneath the weft thread at the leading portion of the weft thread passing through each of the openings of the comb members a stream of a secondary carrying fluid in a zone of the openings of the comb members which is spaced from and disposed opposite from said unthreading channels and which is substantially equidistant from said fluid outlet means in each shank portion.
A method of picking a weft thread through a weft inserting comb in a jet loom by means of a stream of a fluid pressure medium, flowing forwardly from a nozzle through a horizontally disposed comb, wherein said comb is cyclically moved into the shed formed by the warp threads, and wherein said comb includes a plurality of juxtaposed apertured comb members defining a horizontal picking path for the weft thread, each comb member having a pair of shank portions which define an unthreading channel therebetween, at least one comb member having secondary carrying fluid outlet means in each shank portion, the improvement comprising the step of directing downwardly and forwardly along paths which intersect beneath the path of the weft thread streams of a secondary carrying fluid via said outlet means in a zone of the openings of the comb members which is spaced from and disposed opposite from said unthreading channels and which is substantially equidistant from said fluid outlet means in each shank portion so as to contact the leading portion of the weft thread passing through each of the openings of the comb members.
In a jet loom having a nozzle adapted to direct a stream of a fluid pressure medium through a horizontally disposed weft inserting comb which is cyclically moved by a slay into the shed formed by the warp threads thereby picking a weft through therethrough, the improvement comprising,
Dependencies are inferred from the claim text.